The oil cooler on my 87 300TDT began leaking from the upper oil hose the other day. Upon removal I discovered that the threads on both the oil line nut and the fitting on the cooler were totally stripped. Luckily I had a second set of oil lines, as the replacement lines aren't cheap. The question is, can a new threaded fitting be sweated on at the radiator shop, or am I looking at a new one? I will ship it anywhere if someone has a good shop to recommend.